Method for producing nail-free glue by universal glue

A technology of nail-free glue and universal glue, applied in the direction of non-polymer adhesive additives, adhesive additives, etc., can solve problems such as difficult viscosity, poor adaptability to the environment, and health hazards, and achieve adhesion and pull High tensile and shear strength, convenient production process operation, and improved production efficiency

Inactive Publication Date: 2017-03-08
西安富士得高分子化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual construction industry production process, it is often necessary to use a large amount of nail-free glue. This is because in actual work, it is often necessary to consider the appearance, price and efficiency to produce a large number of panels for engineering. Currently, it is used in engineering The most widely used ones are glass glue and nail-free glue. Due to the high comprehensive cost of glass glue and poor adaptability to the environment, and long-term use will cause the appearance of glass glue to fade, and even affect the quality of the panel, the chemical composition added inside is very An important source of chemical pollution has a great impact on people's health. On the glass glue that has been used for a long time, not only the chemical substances emitted by itself, but also various harmful bacteria hidden in it, these are all Seriously endanger people's health, because nail-free glue can overcome the above problems, although the unit cost is higher than that of glass glue, but due to the enhancement of people's environmental awareness, people are more and more inclined to nail-free glue
[0003] Nail-free glue in the traditional sense is made by dissolving and diluting chemical raw materials in organic solvents and adding various plasticizers. The defect of this method is that the chemical raw materials and organic materials used are often highly soluble. Yes, and it is said that organic solvents with such properties are harmful to the human body, so the physical and mental health of the workers are greatly harmed, and in the actual operation process, it is difficult to quickly and accurately control the viscosity of the production, which is extremely It is easy to affect the quality and production efficiency of nail-free glue

Method used

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  • Method for producing nail-free glue by universal glue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for producing nail-free glue from universal glue, comprising the steps of:

[0025] (1) Preheat the reactor, slowly heat up the reactor to 60°C, and apply an organic solvent on the inner surface of the reactor, the organic solvent is selected from ethyl acetate, dimethyl carbonate or propyl acetate Any one, add and smear organic solvent repeatedly during the heating process;

[0026] (2) Pour the all-purpose glue into the reaction kettle and stir. The stirring rate is 100r / min, and it is always rotated and stirred in one direction during the stirring process. Adjust the temperature to dissolve it. Adjust the temperature to 140°C, and the average heating rate 10°C / min, maintain the temperature for 30min to obtain a dissolving gel, the viscosity of the dissolving gel is 10cP;

[0027] (3) Cool down the dissolving gel to room temperature, and perform centrifugation to remove impurities, and the centrifugation rate is 3000r / min;

[0028] (4) Put the dissolved gel...

Embodiment 2

[0031] A method for producing nail-free glue from universal glue, comprising the steps of:

[0032] (1) Preheat the reactor, slowly heat up the reactor to 70°C, and apply an organic solvent on the inner surface of the reactor, the organic solvent is selected from ethyl acetate, dimethyl carbonate or propyl acetate Any one, add and smear organic solvent repeatedly during the heating process;

[0033] (2) Pour the all-purpose glue into the reaction kettle and stir. The stirring rate is 110r / min, and it is always rotated and stirred in one direction during the stirring process. Adjust the temperature to dissolve it. Adjust the temperature to 150°C, and the average heating rate 10°C / min, maintain the temperature for 35min to obtain the dissolving gel, the viscosity of the dissolving gel is 12cP;

[0034] (3) Cool down the dissolving gel to room temperature, and perform centrifugation to remove impurities at a centrifugation rate of 3100r / min;

[0035] (4) Put the dissolved gel a...

Embodiment 3

[0038] A method for producing nail-free glue from universal glue, comprising the steps of:

[0039] (1) Preheat the reactor, slowly heat up the reactor to 80°C, and apply an organic solvent on the inner surface of the reactor, the organic solvent is selected from ethyl acetate, dimethyl carbonate or propyl acetate Any one, add and smear organic solvent repeatedly during the heating process;

[0040] (2) Pour the all-purpose glue into the reaction kettle and stir. The stirring rate is 120r / min, and it is always rotated and stirred in one direction during the stirring process. Adjust the temperature to dissolve it. Adjust the temperature to 160°C, and the average heating rate The temperature is 10°C / min, and the temperature is maintained for 40 minutes to obtain a dissolving gel, and the viscosity of the dissolving gel is 14cP;

[0041] (3) Cool down the dissolving gel to room temperature, and perform centrifugation to remove impurities at a centrifugation rate of 3200r / min;

...

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Abstract

The invention discloses a method for producing nail-free glue by universal glue. The method includes: heating a reaction kettle slowly while painting organic solvent on the inner surface of the reaction kettle, wherein the organic solvent is added and painted repeatedly in the heating process; pouring the universal glue into the reaction kettle, dissolving the universal glue to obtain dissolved glue; cooling the dissolved glue to a normal temperature, and subjecting the cooled dissolved glue to centrifugation and impurity removal; pouring the dissolved glue subjected to centrifugation and impurity removal into a vacuumed reaction kettle for continuous reaction, adding a filling agent and a stabilizing agent during the reacting process, adjusting a temperature and pressure, stirring continuously, and continuously vacuuming to obtain high-temperature nail-free glue; subjecting the high-temperature nail-free glue obtained after vacuum reaction to natural cooling in an argon shield cooling box, continuously stirring during cooling till the temperature is lowered to the normal temperature, and subpackaging to obtain the nail-free glue. The method has the advantages that no toxic effect is caused during processing and using processes, and the nail-free glue is tough and tensile, resistant to temperature and cold, high in gluing, stretching and shearing strength, high in elongation at break and the like.

Description

technical field [0001] The invention relates to the field of nail-free glue preparation technology, in particular to a method for producing nail-free glue from universal glue. Background technique [0002] Nail-free glue is a multi-functional building structure superglue with strong adhesion. In the actual construction industry production process, it is often necessary to use a large amount of nail-free glue. This is because in actual work, it is often necessary to consider the appearance, price and efficiency to produce a large number of panels for engineering. Currently, it is used in engineering The most widely used ones are glass glue and nail-free glue. Due to the high comprehensive cost of glass glue and poor adaptability to the environment, and long-term use will cause the appearance of glass glue to fade, and even affect the quality of the panel, the chemical composition added inside is very An important source of chemical pollution has a great impact on people's he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J11/04
CPCC09J11/04C08K3/26C08K3/34C08K2003/265
Inventor 侯卫东
Owner 西安富士得高分子化工有限公司
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